#include<stdio.h>
#include<math.h>
main()
{
    int a,b,c,d,e;
    for(a=0;a<=1;a++)
    for(b=0;b<=1;b++)
    for(c=0;c<=1;c++)
    for(d=0;d<=1;d++)
    for(e=0;e<=1;e++)
    if((a&&b+c+d+e==3||!a&&b+c+d+e!=3)&&(b&&a+c+d+e==0||!b&&a+c+d+e!=0)&&(c&&a+b+d+e==1||!c&&a+b+d+e!=1)&&(d&&a+b+c+e==4||!d&&a+b+c+e!=4))
    {
        printf("A is pasted a piece of %s paper on his forehead.\n",a?"while":"black");
        printf("B is pasted a piece of %s paper on his forehead.\n",b?"while":"black");
        printf("C is pasted a piece of %s paper on his forehead.\n",c?"while":"black");
        printf("D is pasted a piece of %s paper on his forehead.\n",d?"while":"black");
        printf("E is pasted a piece of %s paper on his forehead.\n",e?"while":"black");
    }
}